I'm successfully processing only AP and CUDA WU on a pair of Q6600 with CUDA cards using the optimized apps. Over the past few weeks my RAC has doubled to about 16,000 mostly due to these two PCs. All seems to be working fine except:
The stderr files shows CUDA's are taking on the order 100 seconds. But the calendar time seems to be a few hours. The CUDA cards run about as hot as usually stated on this site. I'm hoping an expert can spot why the CUDA's seem to take up excessive calendar time. Appreciate any help!
Here is the stderr for a typical work unit:
http://setiathome.berkeley.edu/result.php?resultid=1208947940and for the same WU this is the BOINC Message showing almost 2 hours to complete:
2009-04-27 05:00:25 SETI@home Starting task 01fe09aa.6562.18886.6.8.69_0 using setiathome_enhanced version 608
2009-04-27 06:56:12 SETI@home Computation for task 01fe09aa.6562.18886.6.8.69_0 finished
At these times the PC was idle and, in any case, I permit CUDA computation while the PC is in use.
The SAH portion of app_info is:
<app>
<name>setiathome_enhanced</name>
</app>
<file_info>
<name>AK_v8_win_SSSE3x.exe</name>
<executable/>
</file_info>
<file_info>
<name>setiathome_6.08_windows_intelx86__cuda.exe</name>
<executable/>
</file_info>
<file_info>
<name>cudart.dll</name>
<executable/>
</file_info>
<file_info>
<name>cufft.dll</name>
<executable/>
</file_info>
<file_info>
<name>libfftw3f-3-1-1a_upx.dll</name>
<executable/>
</file_info>
<app_version>
<app_name>setiathome_enhanced</app_name>
<version_num>603</version_num>
<platform>windows_intelx86</platform>
<flops>5160439018.79946125</flops>
<file_ref>
<file_name>AK_v8_win_SSSE3x.exe</file_name>
<main_program/>
</file_ref>
</app_version>
<app_version>
<app_name>setiathome_enhanced</app_name>
<version_num>608</version_num>
<platform>windows_intelx86</platform>
<avg_ncpus>0.127970</avg_ncpus>
<max_ncpus>0.127970</max_ncpus>
<flops>1000000000</flops>
<plan_class>cuda</plan_class>
<file_ref>
<file_name>setiathome_6.08_windows_intelx86__cuda.exe</file_name>
<main_program/>
</file_ref>
<file_ref>
<file_name>cudart.dll</file_name>
</file_ref>
<file_ref>
<file_name>cufft.dll</file_name>
</file_ref>
<file_ref>
<file_name>libfftw3f-3-1-1a_upx.dll</file_name>
</file_ref>
<coproc>
<type>CUDA</type>
<count>1</count>
</coproc>
</app_version>
</app_info>